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DEPARTMENTS
Conductivity
 Fracture conductivity testing is a specialty at
Stim-Lab. The long-term conductivity of a proppant is determined between
either standard lab core (Ohio & Berea) or customer submitted
formation core samples in patented multi-cell stacks. Tests are run with
and without fluids present at a specified temperature (up to 300°F),
closure pressure (up to 14,000 psi), and time. Tests
include:
- Short-Term
API Conductivity
- Long-Term
Conductivity Between Core
- Gas Flow
Turbulence Factors
- Multiphase
Flow Evaluation
- Flowback
Characterization
- Regain
Conductivity of Fracturing Fluids
Fracture
treatment simulations are run between core with a specified fracturing
fluid and proppant, followed by cleanup with brine, oil or
gas.
Individual proppant quality tests for API RP 56, 58 and 60
include:
- Sieve
Analysis
- Krumbien
Shape Factor
- Acid
Solubility
- Silt and
Fine Particulate
- Crush
Resistance
- Specific
Gravity
- Bulk
Density
Conductivity
research at Stim-Lab is on-going through a consortium for "The
Investigation of the Effects of Fracturing Fluids on the Conductivity of
Proppants." Consortium members participate in studies that examine
proppant conductivity in downhole conditions, proppant flowback and
fracturing fluid leakoff. Membership in the consortium is available on a
yearly basis.
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